Arnold for Katana (or KtoA) provides a bridge to the Arnold renderer from within the standard Katana interface.Features* Natural integration with Katana nodes, scenegraph, and scripting.* Multi-threaded scene translation, made possible by Geolib3 in Katana 2.* Bundled Arnold, shaders, and plugins for a smooth out-of-the-box experience.* Support for the latest Arnold 4.2.x series.* Improved interactivity for live rendering (IPR) allows look changes to be rapidly previewed.* Ultra-fast OpenVDB volume rendering.* Shader networks.* Works with third-party shaders and renderer procedurals (for hair, etc).* Render outputs and AOVs, including Deep EXR.* Supports the curves location type in Katana for hair rendering.* Many light types and light filters supported, as well as interactive modification of lights.* Object parameters and global options better match what is available in Arnold.* Improved documentation within Katana (args files).